Due to the New Master Rules, where the Pendulum Zones are now the left and rightmost Spell/Trap Zones, the player that activates this card can only either; Pendulum Summon or have access to this card's Pendulum Effect to double their monsters attacks, and can never have both available simultaneously.
This is not necessarily a problem if the player intends to use this card to finish off the opponent.
Cards that return your Pendulum Scales to your hand, such as "Performapal Trampolynx", can be used to remove the other scale to be replaced with a Set Spell/Trap after successfully performing a Pendulum Summon.
By combining this card with "Dark Simorgh", its "0: Monsters they control cannot attack or activate their effects." effect will constantly be applied to your opponent so as long you have a way to protect "Dark Simorgh" and this card in your Pendulum Zone.
This can be taken even further by using "Anti-Spell Fragrance", effectively forming a lockdown on the opponent, preventing them from even activating any Spell cards that could destroy this card or "Dark Simorgh" and also locking their ability to attack as well.